1 # SPDX-License-Identifier: GPL-2.0
4 $id: http://devicetree.org/schemas/iio/adc/adi,ad7606.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Analog Devices AD7606 Simultaneous Sampling ADC
10 - Michael Hennerich <michael.hennerich@analog.com>
13 Analog Devices AD7606 Simultaneous Sampling ADC
14 https://www.analog.com/media/en/technical-documentation/data-sheets/ad7606_7606-6_7606-4.pdf
15 https://www.analog.com/media/en/technical-documentation/data-sheets/AD7606B.pdf
16 https://www.analog.com/media/en/technical-documentation/data-sheets/AD7616.pdf
40 adi,conversion-start-gpios:
42 Must be the device tree identifier of the CONVST pin.
43 This logic input is used to initiate conversions on the analog
44 input channels. As the line is active high, it should be marked
50 Must be the device tree identifier of the RESET pin. If specified,
51 it will be asserted during driver probe. As the line is active high,
52 it should be marked GPIO_ACTIVE_HIGH.
57 Must be the device tree identifier of the STBY pin. This pin is used
58 to place the AD7606 into one of two power-down modes, Standby mode or
59 Shutdown mode. As the line is active low, it should be marked
65 Must be the device tree identifier of the FRSTDATA pin.
66 The FRSTDATA output indicates when the first channel, V1, is
67 being read back on either the parallel, byte or serial interface.
68 As the line is active high, it should be marked GPIO_ACTIVE_HIGH.
73 Must be the device tree identifier of the RANGE pin. The polarity on
74 this pin determines the input range of the analog input channels. If
75 this pin is tied to a logic high, the analog input range is ±10V for
76 all channels. If this pin is tied to a logic low, the analog input range
77 is ±5V for all channels. As the line is active high, it should be marked
81 adi,oversampling-ratio-gpios:
83 Must be the device tree identifier of the over-sampling
84 mode pins. As the line is active high, it should be marked
90 Software mode of operation, so far available only for ad7616 and ad7606b.
91 It is enabled when all three oversampling mode pins are connected to
92 high level. The device is configured by the corresponding registers. If the
93 adi,oversampling-ratio-gpios property is defined, then the driver will set the
94 oversampling gpios to high. Otherwise, it is assumed that the pins are hardwired
104 - adi,conversion-start-gpios
107 - $ref: /schemas/spi/spi-peripheral-props.yaml#
109 unevaluatedProperties: false
113 #include <dt-bindings/gpio/gpio.h>
114 #include <dt-bindings/interrupt-controller/irq.h>
116 #address-cells = <1>;
120 compatible = "adi,ad7606-8";
122 spi-max-frequency = <1000000>;
126 avcc-supply = <&adc_vref>;
128 interrupts = <25 IRQ_TYPE_EDGE_FALLING>;
129 interrupt-parent = <&gpio>;
131 adi,conversion-start-gpios = <&gpio 17 GPIO_ACTIVE_HIGH>;
132 reset-gpios = <&gpio 27 GPIO_ACTIVE_HIGH>;
133 adi,first-data-gpios = <&gpio 22 GPIO_ACTIVE_HIGH>;
134 adi,oversampling-ratio-gpios = <&gpio 18 GPIO_ACTIVE_HIGH>,
135 <&gpio 23 GPIO_ACTIVE_HIGH>,
136 <&gpio 26 GPIO_ACTIVE_HIGH>;
137 standby-gpios = <&gpio 24 GPIO_ACTIVE_LOW>;